Hawaii Vehicle Registration Fee Calculator
Hawaii combines a $46 state registration fee (raised July 2025) with state weight taxes (1.75–2.25 cents per pound) and county weight taxes — Honolulu's is 7 cents per pound, so a 3,500-lb car on Oahu pays roughly $300+ more in weight taxes plus about $32 in other county fees. EVs pay a $50 state surcharge or can opt into the new per-mile road usage charge (capped at $50).
Your vehicle
- State registration fee$46.00
Estimate only — actual fees are set by your state and county at the time of registration. Data last reviewed 2026-07-16. This state's full local formula is not yet implemented; see the notes below the calculator.
Good to know
- Weight taxes typically add $100–$350 depending on island and vehicle weight — county-level rates coming to this calculator.
- EVs may choose a per-mile road usage charge ($8/1,000 miles, $50 cap) instead of the flat fee; it becomes mandatory for EVs in 2028.
What determines vehicle registration cost in Hawaii?
- Vehicle type (passenger, motorcycle, truck)
- Fuel type (EV and hybrid surcharges where applicable)
- State weight tax (1.75–2.25¢/lb)
- County weight tax (Honolulu 7¢/lb; Maui 3.5¢; Kauai 2¢; Hawaii 1.75¢)
More Hawaii calculators
Vehicle Registration calculators for other states
Sources: https://law.justia.com/codes/hawaii/title-14/chapter-249/section-249-31/ · https://www.honolulu.gov/csd/fee-table/ — data last reviewed 2026-07-16.